/Engine/Plugins/FX/Niagara/Source/Niagara/Public/NiagaraWorldManager.h
A global flag for all scalability culling
static [ENiagaraScalabilityCullingMode](API\Plugins\Niagara\ENiagaraScalabilityCullingMode) ScalabilityCullingMode = ENiagaraScalabilityCullingMode::Enabled;